The prime numbers are 5, 13, and 29. Their product 5 × 13 × 29 = 19555 confirms this. Each factor is a prime number below 30, meeting the condition. Class 6 Mathematics Chapter 5 Prime Time question answer Class 6 NCERT ...
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Yes, Guna is correct. Any two prime numbers are co-prime because their only common factor is 1. For example, 3 and 5, or 11 and 17, share no divisors other than 1. Class 6 Mathematics Ganita Prakash Prime Time Class 6 Mathematics ...
56 and 63 are not co-prime. The prime factorization of 56 is 2³ × 7 and that of 63 is 3² ×7. Both share the common factor 7, disqualifying co-primality. Class 6 Mathematics Ganita Prakash Prime Time Class 6 Mathematics Chapter 5 ...
999 is divisible by 99. The prime factorization of 999 is 3³ x 37 while 99 is 3² × 11. Since 99’s factors are included in 999’s, it confirms divisibility. Class 6 Mathematics Ganita Prakash Prime Time Class 6 Mathematics Chapter 5 ...
343 is not divisible by 17. The prime factorization of 343 is 7³ while 17 is a prime number. Since 17 is not a factor of 343, the two numbers are not divisible. Class 6 Mathematics Ganita Prakash Prime Time Class 6 ...